Open-hearth steel-m elting furnace



(No Model.)

' 3 Shee1s -Sheet 1. C. M. RYDER.

OPEN HEARTH STEEL MELTING FURNACE.

Patented May 6, 1884.

WITNESSES INVEIVYT'IORI w mw A-fforney (No Model.) 3 Sheets-Sheet 2.

O. M. RYDER.

OPEN HEARTH STEEL MELTING FURNACE.

No. 298,028. Patented May 6, 1884.

-I Q o 1'] WITNESSES I m van/r01? N PETERS. Pinto-min m, w-Hnnm, 11c.

(No Model.) 3 SheetsSheet 3.

0.14. RYDER.

OPEN HEARTH STEEL MELTING FURNACE. N0. 298,028. I Patented May 6, 1884.

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I llNIT D STAT S PATENT I O FICE.

CHARLES MI RYDER, OF CHESTER, rENNsYLvANIA.

OPEN-HEARTH STEEL-M ELTING FURNACE.

SPECIFICATION forming part of Letters Patent No. 298,028, dated May 6,1884.

r Application filed May 16, 1883. (No model.)

To all whom it may concern:

Be it known that'I, CHARLES M. RYDER, of Chester, in the county ofDelaware and State of Pennsylvania, have invented certain' new anduseful Improvements in Open Hearth Steel-Melting Furnaces; and I dohereby declare the following to be a full, clear, and ex act descriptionof the invention, such as will enable others skilled in the art towhichit appertains to make and use the same.

Heretofore the repair of open-hearth steelmelting furnaces has beenattended by great outlay of time, labor, and material, due to thenecessity of allowing the furnaces to cool before beginning the work ofrestoration, to the embarrassed and slow methods of working, and to thefact that in repairing some portions of the furnaces the demolition andreconstruction of other and uninjured portions are very frequentlyentailed. c l

The object of my invention is to reduce the expense attendant upon therepair of this class of furnaces to the minimum; and it comprehends theconstruction of a sectional furnace, the respective sections of whichshall be adapted, for the most part, to be removed and repaired orreplaced without disturbing those remaining. l

My invention. further comprehends the construction of devices forremoving and replacing the said sections, as may be desired.

In the accompanying drawings, Figure 1 is a View in transverse sectionof a furnace embodying my invention, showing also the devices forremoving the sectional roof and the front and the rear walls of thefurnace; Fig. 2 is a view of the furnace, partly in front elevation andpartly in longitudinal section; and Fig. 3 is a view of the furnace,partly in plan and partly in transverse section.

The roof of the furnace consists of a number of transverse sections, A,the ends of which aresupported upon blocks B. Thesaid sections andblocks, which are made of any suitable refractory material, are mounted,as shown, in cast-steel clamps 0, provided with angle-irons D.

The front and rear walls of the furnace are composed of refractoryblocks or sections E, of the same width as the sections of the roof, andarranged relatively therewith as shown in the drawings.

Each end of the furnace is provided with two movable structures, F,composed of re fractory material and strengthened by bolts G orequivalent means. ,These structures em body commingling-flues H and gasand air flues I and J. The fines Hrcgister with ports K, located in theends of the. furnace, while the flues I and J, which intersect in thefiues H, respectively register with gas. and air flues L and M, leadingfrom the regenerators N and O, and terminating at the level ofthecharging-floor. When the furnace is not inoperation, the. saidstructures may be supported upon temporary superstructures located onthe charging floor. These superstructures are not shown in the drawings.desired to dismantle the furnace for the purpose of repairing it, thestructures F, mounted upon wheels I, are run out on trackways Q, laid onthe charging floor. During this displacement of the structures the gasand air blasts are prevented from escaping either by exclusion from thefines L and M,"0r by closing the same by suitable lids, which are notshown.

The devices herein shown for removing and replacing the sections of thefurnace structure attached, the otherend thereof being suspended from acarriage, U, running on a tram- When it is way, V, extending parallelwith the front and l rear walls of the furnace. A carriage, W, mountedupon and arranged to travel the length of the beam, is provided withsuitable grappling devices for engaging with the sections of the roofand walls. In virtue of the capacity of the beam for vertical andlateral adjustment, as well as that of the carriage to be moved throughthe length of the beam, any portion of the furnace may be readilyreached for removing and replacing the sections. The

roof-sections may be respectively remov ed and replaced without in anywise disturbing those remaining. When, however, it is desired to removethe wall-sections, the roof-sections immediately above them must beremoved also. It is designed tomake the roof-sections interchangeableeach for each, and the same of the wall-sections, so that they can berespect ively shifted from places of great to others of less exposure,and vice versa. In this manner the usefulness of each individual sectionmay be greatly prolonged. It is also designed to keep the sections induplicate, so that they can be replaced without the delay which attendsrepair.

The advantages derived from constructing furnaces in accordance with myinvention are several fold. It enables them to be wholly or partiallydismantled and reconstructed without waiting for them to cool off, andin no instance does the operation of repairing injured portions of thefurnaceinvolve the demolition and reconstruction of uninjured parts.Further, all work in the nature of repair to the furnace is greatlyfacilitated.

It is apparent that the several sections of the furnace need not beconstructed as shown and described. The flues H may, for instance, i beembodied in structures distinct from the structures F, and the devicesherein shown for removing and replacing the sections may be substitutedby others adapted to do the i same work. I would therefore haveit under-1 stood that I do not limit myself to the exact construction shown anddescribed, but that I i hold myself at liberty to make such slight ichanges and alterations as fairly fall within the spirit and scope of myinvention.

Having fully described rnyinvention, what I claim as new, and desire tosecure by Letters Patent, is-

1. An open -hearth steelmelting furnace having its sides composed ofmovable sections, and its roof composed of removable and interchangeabletransverse sections, the ends of the roof-sections being supported bythe removable side-wall sections, substantially as set forth.

2. An open -hearth steel -melting furnace having its sides and roofcomposed of removable and interchangeable sections of equal width,substantially as set forth.

3. An open -hearth steel-melting furnace having gas and air fluescombined in a single structure, adapted to be moved toward and from thebody of the furnace, substantially as set forth.

4. An open -hearth steel melting furnace having gas and air fluescombined in a single 1 structure mounted on wheels, and adapted to bemoved toward and away from the body of the furnace, substantially as setforth.

In testimony whereof I have signed this specification in the presence oftwo subscribing witnesses.

7 CHARLES M. RYDER.

lVitnesses:

GEo. D. SEYMOUR, F. O. MCCLEARY.

